3D Surface Acquisition and Reconstruction for Assessing the Extent of Strain Ratcheting and Wrinkling in Steel Tubulars

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Cyclic axial loads in steel tubular might lead to local buckling, wrinkling and accumulation of plastic strains in the tube. During their life time steel tubes may also experience different types of material loss such as corrosion or thinning. This paper deals with the effects of corrosion defects on the strain ratcheting response of steel tubes. Small scale un-corroded and corroded tubular specimens have been tested under monotonic and cyclic axial loads. Optical system ATOS has been used for 3D surface acquisition and reconstruction of the tested specimen and to evaluate their strain ratcheting and wrinkling response. This is a camera-based triangulation system. A processing unit employs optical transform equations to automatically and with a great accuracy calculate 3D coordinates for every pixel of camera. Depending on camera resolution as an effect of such a scan a cloud of up to 4 million points has been obtained for every single measurement. From the results, it has been noticed that the possibility of ratcheting or progressive plastic failure substantially increases by the presence of the corrosion defects. With the corroded specimens, the strain ratcheting behaviour in the defected zone has been distinctively different from that in the perfect zones.

Info:

Periodical:

Advanced Materials Research (Volumes 301-303)

Edited by:

Riza Esa and Yanwen Wu

Pages:

388-396

DOI:

10.4028/www.scientific.net/AMR.301-303.388

Citation:

M. Zeinoddini et al., "3D Surface Acquisition and Reconstruction for Assessing the Extent of Strain Ratcheting and Wrinkling in Steel Tubulars", Advanced Materials Research, Vols. 301-303, pp. 388-396, 2011

Online since:

July 2011

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Price:

$35.00

[1] Zeinoddini, M., Harding, J.E. and Parke, G.A.R., 1998, Effect of Impact Damage on the Capacity of Tubular Steel Members of Offshore Structures, Journal of Marine Structures, Vol. 11, Nos. 4-5, pp.141-158.

DOI: 10.1016/s0951-8339(98)00009-4

[2] Zeinoddini, M. and Parke, G.A.R. ., Harding, J. E, 2008, Interface Forces in Laterally Impacted Steel Tubes, International Journal of Experimental Mechanics, Vol. 48(5), p.265–280.

DOI: 10.1007/s11340-007-9111-3

[3] Zeinoddini, M., Sadrossadat S.M. and Parke, G.A.R., 2008, Three-Dimensional Nonlinear Seismic Analysis of Free Spanning Submarine Pipelines Using Finite Element Model: Effects of Pipe-Water Interaction, The ASME 27th International Conference on Offshore Mechanics and Arctic Engineering OMAE2008, Estoril, Portugal, June 15-20, (2008).

DOI: 10.1115/omae2008-57781

[4] Limam, A, Lee, L. -H, Corona, E, Kyriakides, S., 2010, Inelastic wrinkling and collapse of tubes under combined bending and internal pressure, International Journal of Mechanical Sciences, Volume 52, Issue 5, May 2010, Pages 637-647.

DOI: 10.1016/j.ijmecsci.2009.06.008

[5] Jiao, R, Kyriakides, S, 2009, Ratcheting, wrinkling and collapse of tubes under axial cycling. International Journal of Solids and Structures, Volume 46, Issues 14-15, July 2009, Pages 2856-2870.

DOI: 10.1016/j.ijsolstr.2009.03.018

[6] Chang, K. H, Pan, W. F, 2008, Buckling life estimation of circular tubes under cyclic bending. International Journal of Solids and Structures, Volume 46, Issue 2, 15 January 2009, Pages 254-270.

DOI: 10.1016/j.ijsolstr.2008.08.024

[7] Paquette, J. A, Kyriakides, S, 2006, Plastic buckling of tubes under axial compression and internal pressure. International Journal of Mechanical Sciences, Volume 48, Issue 8, August 2006, Pages 855-867.

DOI: 10.1016/j.ijmecsci.2006.03.003

[8] Bardi, F. C, Kyriakides, S, 2006, Plastic buckling of circular tubes under axial compression—part I: Experiments. International Journal of Mechanical Sciences, Volume 48, Issue 8, August 2006, Pages 830-841.

DOI: 10.1016/j.ijmecsci.2006.03.005

[9] Netto, T. A, 2010, A simple procedure for the prediction of the collapse pressure of pipelines with narrow and long corrosion defects _ Correlation with new experimental data. Applied Ocean Research, Volume 32, Issue 1, February 2010, Pages 132-134.

DOI: 10.1016/j.apor.2009.12.007

[10] Sakakibara, N, Corona, E, Kyriakides, 2008, Collapse of partially corroded or worn pipe under external pressure. International Journal of Mechanical Sciences, Volume 50, Issue 12, December 2008, Pages 1586-1597.

DOI: 10.1016/j.ijmecsci.2008.10.006

[11] Netto, T. A, Ferraz, U. S, Botto, A, 2007, On the effect of corrosion defects on the collapse pressure of pipelines. Ocean Engineering Department, COPPE-Federal University of Rio de Janeiro, 21949900 Rio de Janeiro, RJ, Brazil.

DOI: 10.17980/2016.368

[12] Atkinson, K. B, 1996, Close Range Photogrammetry and Machine Vision.

[13] Wieczorowski, M. , Rucinski, M, Koteras, R, Application of optical scanning for measurements of castings and cores, Division of Metrology and Measurement Systems, Poznan , University of Technology, Piotrowo 3, 60-965 Poznan, Poland.

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